Geiger-Automatenbau GmbH is a German pinball manufacturer founded in the mid-1970s in southwestern Germany that carved a niche by licensing and adapting American titles for European markets, producing localized rebrands and conversion kits that retained original Bally playfields and solid-state technology while featuring modified artwork to meet local operator and player preferences, and its machines are now sought-after collector’s items reflecting an era of cross-Atlantic licensing and regional adaptation. Geiger is known for conversion efforts such as the Fly High kit (a conversion of Bally’s Supersonic) and produced a small number of original and rebranded machines documented in pinball archives and databases. Today Geiger-Automatenbau’s legacy is highlighted by collectors and restorers searching for titles and conversion kits, and notable games associated with the company include Harlem Globetrotters On Tour, Eight Ball, High Speed, Mata Hari, Strikes and Spares, and Evel Knievel, making Geiger a recognizable name for enthusiasts of vintage German pinball machines and Bally conversions.